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Nam goes long 1 share of TFS at $67.50. At the same time, he goes short a 3 month call option struck at $70. The price of the call option C7 = $4.32. Assume the interest rate is 0%. a) Graph the payoff for the combined stock plus call option position. Label all the key points (maximum, minimum, breakeven). b) Graph the profit for the combined stock plus call option position. Label all the key points (maximum, minimum, breakeven). c) Xenia sells a 3 month put struck at $70. Show that the graph for the payoff for her put is the same as a) only shifted down by $70. Label all the key points (maximum, minimum, breakeven). d) What price does Xenia demand for her put so that her profit graph exactly matches the one in part b)